Harassing & threatening messages

Keep on receiving harassing & threatening messages from a guy that did us in with wood. He owed us wood that he short supplied. After months we finally received it....but he wanted us to take more and pay for the extra wood. We only wanted what he owed us. A neighbor wanted some of the wood, which he delivered. We received some of the wood that we were short supplied with....but some of it is better than nothing.Now we keep on getting threatening messages because we did not buy the other wood that he had. I have screen shots of all his messages & a screenshot of his whatsapp photo image. I have his cell number...not sure if it should be posted on the report